There are still lots of 440 Source housings around for sale that have the restriction, so be careful that you are buying a new one or an old one that has been sitting on someone's shelf. I have used the MP housing with no issues. twocents

The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!